ID: 22216Nhận biết (M1) A mass of 2 kg stretches a spring 9.8 cm. The mass is displaced upward by 5 cm from the equilibrium position and then set in motion with an upward velocity of 10 cm/s in an undamped environment. The mass is also acted on by an external force for the first 10 seconds of the motion. Assume the acceleration due to gravity is .
a. Formulate the initial value problem that models the motion of the mass for .
b. Find the solution of the problem.
Đáp án đúng:
Nhận biết (M1)
A mass of 2 kg stretches a spring 9.8 cm. The mass is displaced upward by 5 cm from the equilibrium position and then set in motion with an upward velocity of 10 cm/s in an undamped environment. The mass is also acted on by an external force for the first 10 seconds of the motion. Assume the acceleration due to gravity is .
a. Formulate the initial value problem that models the motion of the mass for .
b. Find the solution of the problem.
Đáp án đúng:
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